Question

The specific heat capacities of substances A, B and C are 400 J/ (kg K) , 1000 J/ (kg K) and 3800 J/ (kg K) respectively. i) If they are metals, which is suitable for making a calorimeter? Why? ii) If they are liquids, which can be used in car radiators as coolant? ​

Answer 1

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$\sf\red{⟶}$Heat energy required to raise the temperature of the body is given by Q = mSΔT

where S is the specific heat capacity of the body.

So, more is the specific heat of the body, more is the heat energy required to rise its temperature by 1 ° C and vice-versa.

Hence the material of the calorimeter should have least specific heat capacity so that less heat energy is required to rise its temperature. So, we must select the metal B to make calorimeter.

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